<!DOCTYPE html>
<html>
<head><meta http-equiv="Content-Type" content="text/html; charset-utf-8"/></head>
<body>
<input id="alert" value="alert" type="button" onclick="alert('alert 弹窗');"/>
<input id="confirm" value="confirm" type="button" onclick="confirm('confirm 弹窗');"/>
</body>
</html>
